Single-player games like King of the Universe
Below are 8 single-player Steam games similar to King of the Universe, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like King of the Universe page.
Ranked picks
- 1
Cube Kingdoms
Single-player alternative to King of the Universe — playable solo, no multiplayer required. Shares Strategy and Indie with King of the Universe.
Build a medieval settlement in a fantasy world, manage economy and defense, and fight battles against goblins, undead, demons, and epic boss monsters in auto‑battle style.
- 2
Stronghold: Definitive Edition
Single-player alternative to King of the Universe — playable solo, no multiplayer required. Shares Strategy and Simulation with King of the Universe.
Greetings sire! Your stronghold awaits you. Build a castle economy, besiege unforgettable villains and return to the 'castle sim' that started it all. Experience this classic RTS with upgraded visuals, modernised gameplay, Steam multiplayer and a new campaign.
- 3
Stronghold HD (2012)
Single-player alternative to King of the Universe — playable solo, no multiplayer required. Shares Strategy and Simulation with King of the Universe.
The original castle sim, Stronghold HD allows you to design, build and destroy historical castles. Engage in medieval warfare against the AI in one of two single player campaigns or online with up to 8 players.
- 4
Tlatoani: Aztec Cities
Single-player alternative to King of the Universe — playable solo, no multiplayer required. Shares Strategy and Indie with King of the Universe.
Give rise to wonders of the Aztec Civilization as you build your own magnificent metropolis in this ancient city builder. From humble beginnings build, trade, manage and conquer to become Tlatoani (Emperor).
- 5
TFC: The Fertile Crescent
Single-player alternative to King of the Universe — playable solo, no multiplayer required. Shares Strategy with King of the Universe.
Gather resources, build your base, and lead your people to victory in this captivating reimagining of classic RTS, set in the Bronze Age. Secure fertile land, fend off raids, and stockpile food to generate knowledge and unlock powerful village advancements.
- 6
Medieval Kingdom Wars
Single-player alternative to King of the Universe — playable solo, no multiplayer required. Shares Strategy and Indie with King of the Universe.
Rewrite medieval history through bloody siege combat in a fusion of RTS and Grand Strategy genres. Rule, build, and serve your King as a minor lord in medieval Europe. Experience siege, field and naval combat with an unseen degree of brutality. Rogue-like progression, epic towns and battles await…
- 7
Kingdom Wars 4
Single-player alternative to King of the Universe — playable solo, no multiplayer required. Shares Strategy and Indie with King of the Universe.
It's 1347, the time of the Hundred Years' War. In this historical grand strategy and RTS hybrid you play as one of 200 minor lords across medieval Europe, Africa or Middle East. Rise up to take over your Kingdom and be crowned, then fight to preserve your empire as Black Death descends on Europe.
- 8
Simulator of Ukraine 1991
Single-player alternative to King of the Universe — playable solo, no multiplayer required. Shares Strategy and Indie with King of the Universe.
This game is a global strategy, which is primarily focused on Ukraine after leaving the Soviet occupation. Here you will be given control of Ukraine with the opportunity to change history and intervene in the events of that time.